Traveling table for sawing-machines.



PATENTED SEPT. 19, 1905. E. L. PANGBURN & A. A. OLES. TRAVELING TABLE FOR SAWING MACHINES.

APPLICATION FILED MAY 2, 1905.

IINIT srarns PATENT OFFICE.

EDIVARI) L. PANGBURN AND ANGUS A. OLES, OF SEATTLE, WVASHINGTON.

TRAVELING TABLE FOR SAWING-IVIACHINES.

Specification of Letters Patent.

Patented Sept. 19, 1905.

Application filed May 2, 1905. Serial No- 258,454-

To a, whom, it mag concern:

Be it known that we, EDWARD L. PANG- BURN and ANGUS A. OLES, citizens of the United States, residing at Seattle, in the county of King and State of Washington, have invented new and useful Improvements in Traveling Tables for a Sawing-Machine, of which the following is a specification.

Our invention pertains to traveling tables for sawing-machines and contemplates the provision of a table, particularly a knot-saw table for use in shingle-mills, designed to be operated by hand with but a minimum amount of effort and embodying such a construction that the table is guided and held against lateral play incident to its traverse with but a minimum amount of friction.

\Vith the foregoing in mind the invention will be fully understood from the following description and claims,when taken in connection with the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view of the table constituting the present and preferred embodiment of our invention. Fig. 2 is a side elevation of the table. Fig. 3 is a transverse section taken in the plane indicated by the line 3 3 of Fig. 1; and Fig. 4 is a transverse section which, like Fig. 3, is on an enlarged scale and is taken in the plane indicated by the line 4 4 of Fig. 1.

Similar letters designate corresponding parts in all of the views of the drawings, referring to which- B is the track bar or beam of our improvements, and C C are the chairs, through the medium of which the track-bar is connected to and supported above a bed. The trackbar is of I form in cross-section and is arranged with one of its heads a resting on the bottoms b of the. chairs C after the manner best shown in Fig. 4. The chairs C are provided with apertured flanges c to permit of their being bolted to the bed A and have their inner sides converged upwardly, as shown in Fig. 4, so as to enable the said sides to rest at their upper inner corners against opposite sides of the web (Z of the track-bar B. From this it follows that the track-bar is securely held against lateral deflection in the chairs, and also that the said track-bar must be placed endwise in the chairs, and that when one of its heads is worn or otherwise impaired it may be inverted so as to present its other head to the antifriction-rollers presently described. It will further be noticed that the chairs hold the track-bar B against upward as well as lateral deflection or casual movement, with the result that practically all strain is removed from the bolts 0, employed to connect the traclcbar and the chairs.

D is the reciprocatory table of the improvements, which is preferably of wood, and is provided with an abutment 6, against which the shingles to be out are positioned. The said table D is disposed above and is arranged to move in the direction of the length of the track-bar B, and it is provided at its under side with two (more or less) dependingguards E. These guards E are identical in construction, and therefore a detailed description of the oneshown in Fig. 3 will suflice to impart a definite understanding of both. The said guard E, Fig. 3, is fixedly connected to the under side of the table D, is bifurcated to receive an antifriction-roller F, which bears on the upper edge of the track-bar B and is provided with two side portions f, which terminate at their lower ends in inwardly-directed toes g, which rest in close proximity to the opposite sides of the lower head of bar .8, as illustrated.

It will be readily apparent that the antifriction-rollers F will render easy the endwise movements of the table D on the bar B, while the depending side portions f of the guards E will preclude lateral displacement of the said table from the bar, and this with but a minimum amount of friction, for it will be noticed that the side portions of the guard will only engage the track-bar when the table tends to move laterally with respect to said bar. It will further be apparent that inasmuch as the guards E extend down to points opposite the In the practical use of our improvements the table D is moved in one or both directions by hand, and it will be noticed that such movements will be attended with little or no friction and may therefore be very easily accomplished. It will also be noticed that our improvements are very durable, this latter because the period of its usefulness may be prolonged by inverting the bar B and replacing the rollers F with new rollers.

Having described our invention, what we claim, and desire to secure by Letters Patent, 1s-

1. In a traveling table for a sawing-machine, the combination of a track-bar of Iv form in cross-section, a table disposed above the trackbar and movable in the direction of the length thereof, a guard fixed to and depending from the table and having side portions disposed at opposite sides of the track-bar and terminating in inwardly-directed toes arranged in close proximity to the opposite sides of the lower head of the track-bar, and an antifriotionroller mounted in the said guard and bearing on the upper edge of the track-bar.

2. Inatraveling tableforasawing-machine, the combination of fixed chairs having upwardly-converged sides, a track-bar, of I form in cross-section, arranged in the chairs with its lower head on the bottoms thereof and its web engaged by the chair sides, means extending through and connecting the chairs and the web of the track-bar, a table disposed above the track-bar and movable in the direction of the length thereof, guards fixed to and depending from the table and having side portions disposed at opposite sides of the trackbar and terminating in inwardly-directed toes arranged in close proximity to the opposite sides of the lower head of the track-bar, and

,antifriotion-rollers mounted in the said guards and bearing on the upper edge of the trackbar.

3. Ina traveling table for a sawing-machine, the combination of fixed chairs having upwardly-converged sides, atrack-bar, of I form in cross-section, arranged in the chairs with its lower head on the bottoms thereof and its web resting between and supported by the upper portions of the chair sides, means extending through andoonnecting the chair sides and the web of the track-bar, and a table arranged above and movable in the direction of the length of the track-bar and provided with antifriction means and means for holding it against displacement off said bar.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

EDWARD L. PANGBURN. ANGUS A. OLES. Witnesses:

J. L. DUDLEY, P. J. REGAN. 

